22605280 has 24 divisors (see below), whose sum is σ = 53405352. Its totient is φ = 9042048.

The previous prime is 22605263. The next prime is 22605281. The reversal of 22605280 is 8250622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22605281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70482 + ... + 70801.

It is an arithmetic number, because the mean of its divisors is an integer number (2225223).

Almost surely, 2^22605280 is an apocalyptic number.

22605280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22605280 is an abundant number, since it is smaller than the sum of its proper divisors (30800072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22605280 is a wasteful number, since it uses less digits than its factorization.

22605280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141298 (or 141290 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 22605280 is about 4754.5010253443. The cubic root of 22605280 is about 282.7504448873.

The spelling of 22605280 in words is "twenty-two million, six hundred five thousand, two hundred eighty".